Pulling device



h 1,519,035 Sept 30 a 1 F, J. BRADLEY PULLING DEVICE Filed Aug. 6, 1923WITNESSES ,WLM

ATTORNEYS- Patented Sept. 30, 1924.

PATENT OFFICE.

FREEMAN J. BRADLEY, OF FOSTORIA, OHIO.

PULLING- DEVICE.

Application filed August 6, 1923. Serial No. 655,972.

T out to 710% it may concern Be it known that I, FREEMAN J. BRADLEY, acitizen of the United States, and a resident of Fostoria, in the countyof Seneca and State of Ohio, have invented certain new and usefulImprovements in Pulling Devices, of which the following is aspecification.

This invention relates to a pulling device, and the object of theinvention is to provide a device of this character which is adapted foruse in pulling heavy machinery or for hoisting purposes, and which isequally well adapted for use as a load binder for securing pipes orsimilar articles to the vehicle upon which they are carried.

A further object is to provide a device of this character having theforegoing capacities and which is also so constructed and organized asto exert a powerful pulling or lifting force or a powerful securingaction according to the use to which the device is put without requiringthe expenditure of unusual and laborious efforts in setting or releasingthe device.

A still further object is to provide a device of this character andhaving the foregoing actions and capacities and which is at the sametime of simple and durable construction, reliable and safe in operationand easy and comparatively inexpensive to manufacture.

Other objects and advantages of the invention reside in certain novelfeatures of the construction,combination and arrange ment of parts whichwill be hereinafter more fully described and particularly pointed out inthe appended claims, reference being had to the accompanying drawingsforming part of this specification, and in which:

Figure 1 is a view in side elevation, showing the preferred embodimentof the invention and illustrating the partsin the position which theyassume at the start fo the pulling, hoisting or tensioning operation;

Figure 2 is a view similar to Figure 1 but showing the parts in theposition which they assume after the completion of the pulling, liftingor tensioning operation;

Figure 3 is a plan view of the device as shown in Figure 1; and

Figure 4: is a detail perspective View, showing the parts of therotatable member and the loose ring prior to assembly.

Referring to the drawings wherein for the sake of illustration is shownthe preferred embodiment of the invention, the numeral 1O designatesgenerally a rotatable member which is made up of a pair of simi larplates 11, each of which is formed around its outer marginal portionwith a circumfer- 'entially extending flange 12. The plates 11 areassembled in face to face relation and are secured together as willhereinafter appear and. when so assembled the flanges 12 define betweenthem an annular or circumferentially extending groove in the peripheryof the rotatable member. A ring 13 is loosely fitted in the peripheralgroove of the body portion thus formed and is adapted to permit of freerelative rotary movement on the part of the rotatable member 10 althoughthe rotatable member and the ring are held together against linearmovement.

Ahook 15 is provided and is rotatably connected, as at 16, to the bodyportion 17 of a yoke 18. The yoke 18 includes a pair of arms 19, theouter ends of which are offset, as at 19 to the main portion thereof,and these outer ends being then arranged to span the rotatable member10, and are pivotally and eccentrically secured thereto by a bolt 20 anda nut 20 The bolt holes which receive the bolt 20 are disposed inwardlyof the peripheral groove defined by the flanges 12 so that this boltdoes not illterfere with the free rotation of the ring 13. It is also tobe noted that the bolt 20 and nut 20 serve to secure the plates 11together so as to aid in holding these parts in assembly. A hand lever21 is provided and has one end sharply offset, as at 22, and thensecured to the rotatable member 10 by bolts and nuts 23 which are alsoso arranged as not to interfere with the ring 13 and which supplementsthe action of the bolt 20 and nut 20 in holding and securing the plates11 of the rotatable member to each other.

The ring 13 is provided with an apertured lug 13 which is preferablyintegrally formed with the annular portion of the ring although ofcourse it may be otherwise suitably connected thereto. To this aperturedlug 18 a connection in the form of a clip 25 is pivotally secured, as at26, and to the connection 25 a second hook 27 is rotatably connected, asat 28.

In using the device for pulling objects or for lifting them the hook 27is connected to the stationary member or is suspended from a support bya chain or any other suitable means, and the hook 15 is connected to theobject to be drawn or lifted by a chain or other --snitable means. Thehand -lever 21 is then grasped and is moved in a counterclockwisedirection, as viewed in Figure 1. This causes the rotatable member 10 torotate thereby moving the bolt 20 in a counterclockwise direction fromthe position shown in Figure 1 to the positionsshown in Figure 2 andthus exerting a drawing or lifting action. lV-ith this arrangement avery effective li-fting'or :pulling action is had and yet the parts areso designed as to be strong and durable and not liable to be damaged orin jured by long continued use. The ring 13 has a relatively largebearing on the rotatable member and have embodied if desired for thestructure is adapted to therein anti-friction means obviously raceWaysmay be provided in the peripheries of the plates 11 making up therotatable members and .ball bearings may be mounted insuch raceways, theball or roller "bearings engaging the inner or side faces'of the rings.It is also to be understood that these anti-friction means may beomitted, and preferably they are c omitted as they are not required formost uses.

In using the device as a load binder the hooks 15 and 27 are engagedwith .the links of the chain used to secure the load in position and thelever 21 is manipulated as above described. It is tobe understood thatthe handle 21 is moved to such an extent as to shift the rotatablemember through an angular distance slightly in excess of 180 so es tobring the arms 19 ofthe yoke 18 into engagement With the offset end ofthe handle 21 and the bolts 23. lVith the parts so positioned the pullexerted on the hook 15 Will tend to more firmly urge these parts intoengagementand will thus tend to more securely lock the device or holdthe same in set position. At the same time as soon as the handle 21 isshifted to such an extent that the body portion 17 is moved a slightdistance in a clockwise direction as viewed in Figure 2, the relation ofthe pivot 20 to the line-of pull of the chain will be changed and theparts will tend to automatically unlock or move tromthe position inFigure 2 to the member, a ring loosely mounted in the peripheral groove01' the rotatable member,

and a second hook connected to said ring.

3. In a device of the character described, a rotatable member comprisinga pair of plates secured to each other in face to face relation andhaving marginal flanges delining a peripheral groove in said rotatablemember, a hand lever secured to said rotatable members, a hook, a. yokehaving its body portion connected to the hook and having its arms oltsetat their ends and pivotally and eccentrically secured to said rotatablemember, a ring loosely mounted in the peripheral groove of the rotatablemember and havingan apertured eye integral therewith, and a .hookconnected with the apertured eye of the ring.

FREEMAN J. BRADLEY.

